GAS FREE PROCEDURES FOR PAINTING OPERATIONS

GAS FREE PROCEDURES FOR GAS FREE PROCEDURES FOR PAINTING OPERATIONSPAINTING OPERATIONS

Lesson Topic 3.3Lesson Topic 3.3Lesson Topic 3.3Lesson Topic 3.3

INTRODUCTIONINTRODUCTION

As Gas Free Engineering Personnel you will be required to know the procedure and safety precautions involved during painting operation in a confined space.

Lesson Topic 3.3, Gas Free Procedures For Painting Operations

ENABLING OBJECTIVESENABLING OBJECTIVES

Describe gas freeing and safety precautions/procedures to be followed before, during, and after painting operations in accordance with NSTM Chapter 074 Vol. 3, Gas Free Engineering, NSTM Chapter 631 Vol. 1, Preservation of Ships in Service - General, NSTM Chapter 631 Vol. 2, Preservation of Ships in Service - Surface Preparation and Painting, and OPNAVINST 5100.19, series.


PAINTING OPERATIONSPAINTING OPERATIONS


General safety measures

Potential hazards that exists in all painting operations make a continuing and enforced safety program essential.



WORKING ENVIROMENT: Shall be studied before painters are sent into any work area.


Spray Painting

Performed to preserve and protect the ship’s interior spaces

Principal hazard is the paint, its components, and the form in which it is applied

Spray gun produces airborne contaminants Vapors, mists,

and aerosolsOSHA regulates

worker exposure and the PPE standard

More hazardous than brush application due to: Volume of material being applied Flammable residue deposited by

spraying which might spontaneously combust

Harmful toxic mists created by spraying

Spray Painting

What does the GFE have to What does the GFE have to do with Spray Painting?do with Spray Painting?

Ensure you are notified of any interior spray painting prior to the operation

This allows you to: Ensure operating personnel set up

ventilation properly and keep it running Ensure space is monitored for CO during

and after completion Consider LEL/Vapor Volume of solvents

involved per 074 Vol. 3 page 21-10

SAFETY IS YOUR NUMBER ONE

PRIORITY

Safe Painting Operations Two most important factors:

Responsibility of Supervisors and Operating Personnel Obtain Gas Free

Engineer’s Approval prior to commencing painting

Ensure GFE is advised when ventilation is secured after painting is completed

Gas Free Engineer provides technical assistance (ventilation set up, PPE) as needed in addition to gas free testing

Training

PRIOR TO PRIOR TO PAINTINGPAINTING

“For contaminating operations…withina confined or enclosed space, the

(GFE) certificate shall specify applicablerequirements such as ventilation, PPE,

respiratory protection, explosion proof andsparkproof equipment and suitable fire

protection equipment.”

NSTM 074 VOL 3

Basic Safety Guidelines

Always protect your crew against the three major hazards:

Mishaps Fire Toxicity


Hazards to be considered, include: Poor Ventilation Noxious Fumes High Temperatures Type of material and how applied Type of space


Ensure the work supervisor uses a safety checklist

An example is provided in NSTM 631 Vol. 1 “Preservation of Ships in Service”

Basic Safety Guidelines

PG 34-35


BUDDY SYSTEMCOMMUNICATIONSAFETY OBSERVERWORK ENVIRONMENTVENTILATION REQUIREMENTSPPE REQUIREMENTS


Personnel shall never work alone in hazardous areas

Communications should be maintained

Operation should be supervisedEnsure you state on the Gas Free

Certificate:“Observe Two Man Rule”

Buddy System - Communications -

Supervision

VENTILATION Requirements

Required to control the toxic and flammability hazard

Use dilution-type ventilation to protect adjacent areas Ensures vapor

concentrations remain below 10% of the LEL

Run ventilation continuously

Continue ventilation for at least one hour after painting is completed

Ventilation requirements / procedures

Outside air shall be provided at a minimum rate of 1 air change every 3 minutes, but not less than that required to provide a safe, life - supporting atmosphere.



Use outside (fresh) air for supply, and exhaust directly to outside air.

Carefully consider the number, placement and capacity of blowers, number and size of flexible ducts, size and shape of space.



Point of exhaust shall be as far as practical from point of supply.

Place ducts in areas where vapors may collect.



Selection of supply or exhaust ventilation shall be based on: Internal configuration of the space Location of openings Blower availability Staging distribution and other

considerations



Safety Precautions Rope off and post DANGER AREA signs Prohibit smoking, hot work, and open

flame in the area. All electrical leads shall be sealed. All equipment requiring grounding shall

be grounded. Fire extinguishing equipment shall be in

the ready condition.


Protective EquipmentProtective Equipment

Respirators: All devices shall be approved by NIOSH and Mining Safety and Health Administration (MSHA).



SUPPLIED AIR RESPIRATORS: Used in closed areas where ventilation cannot be supplied.



Respiratory care Equipment shall be cleaned

immediately after use.



Eye Protection Must be worn in areas where there

is a possibility of particles, mists or vapors entering eyes


NOTE: Emergency eyewash stations shall beavailable at the site or portable eyewash stations available if fixtures are not installed.


Personnel shall wear adequate clean clothing and gloves to prevent skin contact with painting and cleaning materials.


GAS FREE GAS FREE ENGINEER ENGINEER INSPECTIONINSPECTION

APPLICATION OF PAINT IN A CONFINED SPACE

Conduct periodic gas free testsGFE conducts

the initial testGFEA/GFEPO

conduct retesting

Conduct testing during work breaksExhaust side of

portable ventilation

Air intakes

CHECK FOR OR STATE THE FOLLOWING:

Type of ventilation to be used

How you want ventilation set up Spell this out on

your Gas Free Chit Ensure all DC

numbers and plates are covered or numbers & location are recorded

Type of respiratory protection Spell this out on

your Gas Free ChitType of PPE to

use Spell this out on

your Gas Free Chit

Gas Free Testing Requirements

Oxygen test 19.5 - 22 percent

Explosive test Remain below 10 percent of the LEL

Toxic tests Remain below their PELs


DURING PAINT DURING PAINT OPERATIONSOPERATIONS

Never test levels at the nozzle of spray gun Receive inaccurate readings Ruin GFE equipment

Only one day’s paint can be in a space at any one time

DURING PAINT OPERATIONS

POST PAINT ING POST PAINT ING CONCERNSCONCERNS

POST PAINTING CONCERNS

Ventilation should run for 1 hour after job completion

Ensure DC labels & plates are restored correctly!!!

Clean respirators & dispose of hazardous material properly

10 minutes after ventilation shutdown, 10 minutes after ventilation shutdown, ensure space is gas freeensure space is gas free

Requirement from OPNAVINST 5100.19C (C18)

“Wear supplied air respirators when engaged in

spray painting operations internal to the ship

or in confined external areas…”

(Realize that 631 and 5100.19C differ on this

issue. NSTM 631 only requires supplied air for

Vinyl and Epoxy paints.

Always err on the side of

SAFETY!!

“VENI, VIDI, VENTILATE!!!”

Loosely translated means

“Ventilate, Ventilate, Ventilate!!!”

REVIEW AND SUMMARYREVIEW AND SUMMARY


REVIEW AND SUMMARYREVIEW AND SUMMARY

Painting Operations


THE ENDTHE ENDTHE ENDTHE END

GAS FREE MISHAPS“DEATH IN A COFFERDAM”

BACKGROUND

East Coast Amphib has leak in a MOGAS tank and contracts job to civilians to clean, inspect and fix tank

MOGAS tank located underneath the well deck

XO puts out at O-Call that no contractors will be working in tanks/voids that day

CDO present at O-Call

BACKGROUND

Contractor comes on board and informs CO that he will be “going in and out of the” MOGAS tank all day

OOD, CDO never notifiedCDO unfamiliar with Gas Free

Engineering - didn’t even know what IDLH stood for

TIMELINE

0805

“C” fire

- “C” fire in 1 of 4 shore power cables

- Base Fire Dept. called to secure cable

- Ship remains on shore power

TIMELINE

0805

“C” fire

- 1315 Contractor dons an electrically powered SAR with no back-up air supply to search for leak

- Space not gas freed

- 1320 Contractor enters the cofferdam

1320

Contractor Enters

TIMELINE

0805

“C” fire

- 1330 Ship goes from Shore to Ship’s Power while Public Works changes out bad cable

- Word is passed over 1MC

- Power interruption stops the Contractor’s SAR

1320

Contractor Enters

1330

Power Secured

TIMELINE

0805

“C” fire

- 1335 New cable in place and Shore Power restored

- Power surge shuts down several breakers, to include the one that powers the Contractor’s SAR

1320

Contractor Enters

1330

Power Secured

Shore Power Restored

1335

TIMELINE

0805

“C” fire

- 1342 Power restored to compressor but by this time Contractor was without air for 7 minutes

- R & A called away

- Drop test conducted at entrance and space is determined to be in the UEL

1320

Contractor Enters

1330

Power Secured


1335

1342

Power Restored

TIMELINE

0805

“C” fire

- 1355 Ship calls Base Medical to report “unknown illness”

- 1400 Ship calls Base Fire Dept. and reports “Man down at quay wall”

1320

Contractor Enters

1330

Power Secured


1335

1342

Power Restored

Fire Dept Called

1400

Firefighters arrive on scene and determine that it is a Rescue vice Recovery

Fire Chief and Firefighter enter space with SCOTT SCBA and no back-up air supply

Holes in swash plates 15 in x 22 in

TIMELINE

0805

“C” fire

- 1415 Asst. Fire Chief calls Trench and Rescue Team to be brought in

1320

Contractor Enters

1330

Power Secured


1335

1342

Power Restored

Fire Dept Called

1400

1415

Trench & Rescue Called

Trench and Rescue Team arrives and asks to see ship’s drawings for another possible entrance

Positive Pressure ventilation and atmospheric monitoring ordered

TIMELINE

0805

“C” fire

- 1517 Two man Rescue Team enters cofferdam for recovery

- Max 25 minute stay time due to atmosphere

1320

Contractor Enters

1330

Power Secured


1335

1342

Power Restored

Fire Dept Called

1400

1415

Trench & Rescue Called

1517

2 Man Team Enters for Recovery

Took 7 teams of two to three personnel more than 4 hours to recover the bodies of the Contractor and the Fire Chief

Final Analysis

Contracting company charged with 30 violations of 29 CFR, to include not providing a Marine Chemist to perform a Gas Free test and inadequate respiratory protection

CO, CDO, Air Officer, Fuels Officer and DCA all went to Admiral’s Mast

Final Analysis Cont.Final Analysis Cont.The CO was charged with overall responsibility for the safety and health of all people on his ship and 2 people died. The CO went on to 2 other major commands.

The CDO was charged with a violation of the SORM “The CDO shall keep himself informed of all events onboard the ship.” Charges eventually were dismissed.

The DCA was charged for numerous violations of NSTM 074.

The Air Officer and Fuels Officer were charged with failure to clean the MOGAS tank and cofferdam IAW NSTM’s

GAS FREE PROCEDURES FOR PAINTING OPERATIONS

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